That's where you come in: We want your questions to ask the candidates.

The federal NDP's eighth leader will have to wade through unpredictable political times and convince Canadians they have more vision and strategy than Prime Minister Justin Trudeau's Liberals and Andrew Scheer's Conservatives.

What do you want to ask the candidates? Send us your question in the comments below.

And follow us on Facebook for the live event on Wednesday, Sept. 27 in English at 7 p.m. EST and in French at 8 p.m. EST.